CN112498155B

CN112498155B - Charging platform and charging and replacing station

Info

Publication number: CN112498155B
Application number: CN202011466064.2A
Authority: CN
Inventors: 高宇清; 王卫; 叶高高; 樊瑞; 吴鹏
Original assignee: Zeqingxin Energy Technology Co ltd
Current assignee: Zeqingxin Energy Technology Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2022-09-23
Anticipated expiration: 2040-12-14
Also published as: CN112498155A

Abstract

The invention discloses a charging platform and a charging and replacing station, and belongs to the technical field of charging equipment. When the jacking part on the charging platform bears the battery assembly, the first positioning part realizes that the charging connector arranged on the first positioning part extends along the guide groove in the first guiding part under the action of the gravity of the battery assembly and obliquely and downwards slides to a position which can be matched with the charging interface of the battery assembly, so that the charging connector is contacted with the charging interface to form an electric connection structure, a charger post and a battery post are conveniently and better contacted, and the battery assembly can be quickly charged without the assistance of other driving mechanisms in the whole process; in the action process of charging, the battery assembly can act only under the action of the gravity of the battery assembly, so that the energy is saved and the environment is protected; the problem of current electric motor car automatic charging system in to a certain extent, it trades the electric efficiency slow to charge.

Description

Charging platform and charging and replacing station

Technical Field

The invention belongs to the technical field of charging equipment, and particularly relates to a charging platform and a charging and replacing station.

Background

With the gradual improvement of environmental awareness of people, the problem of environmental pollution caused by the traditional energy automobile is more and more emphasized, and therefore, the new energy automobile is produced at the same time. At present, as one of new energy vehicles, electric vehicles have been gradually accepted by the public. For an electric automobile, charging of a charging pile and replacement of a battery are two ways for realizing the endurance of the electric automobile. The battery replacement is to replace the battery to be charged on the vehicle, take out the charged battery from the battery charging rack to replace the battery to be charged, and place the battery to be charged in the charging cavity for charging. However, since the battery of the electric vehicle is generally transported to the charging chamber by the transporting equipment such as the forklift, and the inlet of the charging chamber is highly matched with the size of the battery, the battery can be accurately transported into the charging chamber from the inlet only by the skilled operation of the operator, if the battery is not placed once when being placed, the battery is misplaced from the inlet, and the battery has to be transported by multiple adjustments, which seriously affects the working efficiency. With the development of the technology, there is a system capable of automatically charging and replacing the battery.

For example, chinese patent No. CN201811065605.3 discloses a battery fixing device for a large-scale vehicle battery replacement station, which includes a battery rack, a battery guide block and a locking mechanism; a battery guide block is arranged on the side edge of the battery frame; a battery locking mechanism is arranged on the battery frame; and the battery rack is provided with a positioning pin. The invention can accurately place the batteries with insufficient power into the battery rack through the guide block; after the battery is locked by the locking mechanism, charging is performed. This solution has the following drawbacks: although the positioning pin can realize the positioning of the battery, the position deviation is avoided; but after locking the battery through locking mechanism, all need unblock or unblank the battery in depositing and taking of battery, this very big increase the electric automobile trade latency of electric, reduce user experience.

For another example, chinese patent No. CN201810961137.1 discloses an automatic battery charging and replacing system and an automatic battery charging and replacing method for an electric vehicle. According to the scheme, the battery assembly is accommodated in the accommodating cavity, a motor receiving and outputting piece is arranged at one end, close to the baffle, of the battery pack, and a magnetic piece is arranged at one end, close to the baffle, of the movable support; the charging device comprises a supporting table, a supporting plate, an electromagnetic fitting piece and a charger, wherein the supporting plate is formed by protruding one side of the supporting table, the electromagnetic fitting piece can generate a magnetic attraction effect on the magnetic piece, and the charger is used for being electrically connected with the motor connecting piece; when the supporting plate is contacted with the baffle plate, the baffle plate is changed from a closed state to an open state, so that the battery component leaves the accommodating cavity under the magnetic attraction effect of the electromagnetic matching piece on the magnetic piece and moves along the supporting plate until the motor connecting piece is electrically contacted with the charger. However, this solution has the following drawbacks: through the magnetic force generated by the electromagnetic matching piece, a part of electric energy needs to be consumed, and some unnecessary energy loss can be caused; in addition, due to the use of the electromagnetic mating member, a certain magnetic field can be generated nearby, the positive electrode material of the battery which forms current during charging and discharging is a metal ion compound, when charging and discharging are carried out, metal ions can move from one pole to the other pole, and if a strong magnetic field is applied, the metal ions can be interfered by the magnetic field to influence the charging state of the battery. Therefore, there is a need in the art to develop a new battery charging platform.

Disclosure of Invention

1. Problems to be solved

Aiming at the problem that the charging and power exchanging efficiency of the existing automatic charging system of the electric vehicle is low, the invention provides a charging platform and a charging and power exchanging station, when a jacking part on the charging platform bears a battery assembly, a first positioning part realizes that a charging connector arranged on the first positioning part slides obliquely downwards to a position which can be matched with a charging interface of the battery assembly along a guide groove in the first guiding part under the action of the gravity of the battery assembly, so that the charging connector is contacted with the charging interface to form an electric connection structure, a charger column is conveniently contacted with the battery column better, the whole process does not need the assistance of other driving mechanisms, and the battery assembly can be charged quickly; and the battery assembly can skillfully act only under the action of the gravity of the battery assembly in the action process of charging, so that the arrangement of a complex mechanism is saved, and the battery assembly is more energy-saving and environment-friendly.

2. Technical scheme

In order to solve the problems, the technical scheme adopted by the invention is as follows:

a first aspect of the present invention provides a charging platform, comprising:

the first positioning part is provided with a jacking part used for limiting the battery assembly;

a second positioning part, wherein a reset mechanism is arranged between the second positioning part and the first positioning part; the first positioning part and the second positioning part have a certain interval in the height direction;

the first guide part is arranged on the second positioning part, one end of the first guide part penetrates out of the first positioning part, and a guide groove is formed in the first guide part; the groove length direction of the guide groove is inclined relative to the horizontal plane;

the charging positioning part is used for fixing a charging connector matched with a charging interface of the battery assembly; the connecting end of the charging positioning part is movably arranged in the guide groove.

In some embodiments, the charging positioning portion is slidably connected to the first positioning portion.

In some embodiments, a third positioning portion is provided at an upper end of the first positioning portion, and a front end of the first guide portion also protrudes from the third positioning portion; horizontal sliding rails arranged on the third positioning part are further arranged on two sides of the first guide part;

the charging positioning part comprises a plate-shaped body, and the plate-shaped body is bent towards one side to form a transverse plate; the horizontal sliding rail is connected with the bottom of the transverse plate through a sliding horizontal sliding block.

In some embodiments, the guide groove is opened in a direction perpendicular to the thickness direction of the first guide portion; a movable space is arranged in the first guide part;

a wheel shaft in sliding fit or rolling fit is penetrated in the guide groove; the bottom of the transverse plate is provided with a connecting block; the connecting block is connected with the wheel shaft in the movable space, so that: the wheel shaft drives the transverse plate through a connecting block.

In some embodiments, a side plate is further fixedly connected to one side of the plate-shaped body, and a guide hole is formed in the side plate; the plate-shaped body and the side plates are respectively provided with a first hole for clamping a charging connector;

a first position sensor and a second position sensor are arranged on one side of the side plate; the front end of the plate-shaped body is also provided with a third position sensor.

In some embodiments, the top support portion includes a vertical plate body, a sharp plate extends from one side of the vertical plate body close to the edge of the first positioning portion, the sharp plate has a bevel edge, a chamfer is provided on one side of the bevel edge, and the other side of the bevel edge extends to the upper end face of the vertical plate body.

In some embodiments, the first positioning portion and the second positioning portion are elastically connected through a return spring;

the first positioning part is provided with a fourth hole, the second positioning part is provided with a slide way extending out of the fourth hole, the first positioning part is provided with a second guide part close to the fourth hole, and the second guide part is in sliding connection with the slide way.

In some embodiments, the second positioning portion comprises a bottom plate, and a first limiting plate is formed by bending upwards at the outer edge of the bottom plate; the first positioning part is a U-shaped cover plate with a downward notch, and the outer edge of the U-shaped cover plate is bent downward to form a second positioning plate; the first limiting plate is abutted and matched with the second limiting plate;

a circle of third limiting plate with an edge extending upwards is arranged in the middle of the bottom plate; and a circle of edge is arranged on the first positioning part and is abutted against a fourth limiting plate matched with the third limiting plate.

In some embodiments, weight-reducing holes with the same shape are arranged in the middle of the bottom plate and the U-shaped cover plate; and the third limiting plate and the fourth limiting plate are respectively arranged at the edge of a circle corresponding to the lightening hole.

A second aspect of the present invention provides a charging and replacing power station, including:

the battery storage rack is provided with a plurality of charging platforms; and

the battery grabbing mechanism is arranged on one side of the battery storage rack and used for placing or grabbing the battery assembly on the battery storage rack.

3. Advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

(1) when the jacking part on the charging platform bears the battery assembly, the first positioning part realizes that the charging connector arranged on the first positioning part slides obliquely downwards to a position which can be matched with a charging interface of the battery assembly along the guide groove in the first guiding part under the action of the gravity of the battery assembly, so that the charging connector is contacted with the charging interface to form an electric connection structure, a charger post and the battery post are conveniently and better contacted, the whole process does not need the assistance of other parts, and the battery assembly can be quickly charged; in the action process of charging, the battery assembly can act only under the action of the gravity of the battery assembly, so that the energy is saved and the environment is protected;

(2) according to the invention, the second holes of the plate-shaped body are strip-shaped holes which are formed along the horizontal direction and are distributed on the periphery of the first holes, and guide pillars (not shown) on the charging connector are arranged in the second holes, so that the charging connector can move left and right in the second holes; the side plate is fixedly attached to the plate-shaped body, a guide hole matched with the second hole is formed in the side plate, the guide hole is a strip-shaped hole formed in the vertical direction, is positioned on the back of the second hole and is distributed on the periphery of the first hole; when the charging positioning part is contacted with the charging interface, the guide post on the charging interface is inserted into the guide hole and can move in the horizontal direction; through the matching of the second hole and the guide hole, the dislocation automatic adjustment of the charging connector and the charging connector in one plane can be realized, so that the charging connector and the charging connector can be matched in a self-adaptive manner, the charging connector is aligned with the charging connector, and the charging success rate is greatly improved; furthermore, a reset mechanism such as a coil spring can be arranged in the second hole, so that after the charging connector is aligned with the charging connector, the charging connector is reset through the coil spring, and the charging step can be conveniently repeated;

(3) according to the invention, the reset mechanism is arranged between the first positioning part and the second positioning part, when the charging step is executed, the first positioning part moves downwards under the action of the gravity of the battery assembly, and after the charging step is completed, the first positioning part is reset to the original position relative to the second positioning part by the reset mechanism in the grabbing process of the battery assembly by the battery grabbing mechanism, so that the charging step can be circularly carried out, and the battery can be repeatedly used for multiple times;

(4) according to the invention, the second positioning part is provided with the slide way extending out of the fourth hole, the first positioning part is provided with the second guide part close to the fourth hole, and the first positioning part is carried out along the direction of the slide way when descending or ascending through the arrangement of the second guide part, so that the first positioning part cannot be reset due to axial dislocation of the second positioning part and the first positioning part, and the flexibility and the adaptability of the platform are improved;

(5) the charging and replacing power station provided by the invention has high automation degree, and realizes automatic unloading, automatic charging and automatic installation of the battery assembly through the matching motion of the charging platform and the charging and replacing power station; in addition, the charging platform is simple in structure, low in production cost and capable of being expanded without limitation, and labor intensity of personnel can be reduced.

Drawings

Fig. 1 is a schematic structural diagram a of a charging platform according to an embodiment of the present invention;

fig. 2 is a schematic view of a first perspective view of a charging positioning portion according to an embodiment of the present invention;

fig. 3 is a schematic view of a second perspective view of the charging positioning portion according to the embodiment of the present invention;

fig. 4 is a front view of a charging platform according to an embodiment of the present invention;

fig. 5 is a partial side view of a charging platform provided by an embodiment of the invention;

fig. 6 is a schematic structural diagram b of a charging platform according to an embodiment of the present invention

Fig. 7 is a top view of a charging platform according to an embodiment of the present invention;

fig. 8 is a bottom view of the charging platform according to the embodiment of the present invention;

FIG. 9 is a perspective view of a jacking portion provided in accordance with an embodiment of the present invention;

fig. 10 is an assembly diagram of the first positioning portion and the second positioning portion according to an embodiment of the present invention;

FIG. 11 is an enlarged view at C of FIG. 1 according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram a of a charging and swapping station according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a temporary storage rack according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a battery gripping mechanism according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram b of a charging and swapping station according to an embodiment of the present invention

Fig. 16 is a side view of a charging and swapping station according to an embodiment of the present invention.

In the figure:

100. a charging platform; 105. lightening holes; 112. lengthening the barrel; 113. a return spring;

120. a jacking portion; 121. a vertical plate body; 1210. a tip plate; 1211. a bevel edge; 1212. chamfering; 122. a flat plate; 1220. a third aperture;

130. a first positioning portion; 1301. a second limiting plate; 1302. a fourth limiting plate;

140. a second positioning portion; 1401. a third limiting plate; 1402. a first limit plate;

150. a charging positioning portion; 151. a first position sensor; 152. a second position sensor; 155. a third position sensor; 157. a transverse plate; 158. a horizontal slide rail; 159. a horizontal slider; 1543. a first hole; 1541. a second hole; 1530. a guide hole;

160. a third positioning part;

170. a first guide portion; 171. a guide groove; 172. a right-angle set square; 172a, oblique side edges; 173. a connecting plate;

180. connecting blocks; 181. a guide wheel; 182. a wheel axle;

191. a first guide plate; 192. a second guide plate; 1920. a straight guide groove; 193. a horizontal axis;

200. a battery assembly;

300. a battery storage rack; 310. an oblique beam; 320. a temporary storage rack; 330. a first frame; 340. laminating the board;

321. a third cross bar; 322. reinforcing ribs; 323. a first cross bar; 324. a vertical rod; 325. a second cross bar; 326. a pressure sensor; 327. a support bar;

400. a battery grasping mechanism; 410. a servo motor; 411. a bearing seat; 413. a rotating shaft;

420. a second frame; 421. a first vertical beam; 422. a second vertical beam; 423. a rectangular frame;

430. a drive chain; 440. a balancing weight; 460. a grasping assembly; 462. a telescopic arm; 461. a bottom bearing plate; 463. a second roller.

Detailed Description

To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all embodiments of the present application. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

To solve or partially solve the above problems, embodiments of the present disclosure provide a charging platform and a charging and swapping station, some exemplary embodiments of which are now described with reference to fig. 1-16. In the following description, the scenes of battery replacement and charging in the electric vehicle battery replacement station are taken as objects of description, but the scope of the present disclosure is not limited thereto, and any charging platform capable of adopting the description herein is included in the scope of the present disclosure.

Example 1

Referring to fig. 1 to 11, the present embodiment provides a charging platform 100, which generally includes a first positioning portion 130, a second positioning portion 140, a first guiding portion 170, and a charging positioning portion 150.

A first positioning portion 130 having a top receiving portion 120 for receiving the battery assembly 200; a reset mechanism is disposed between the first positioning portion 130 and the second positioning portion 140, and when the first positioning portion is separated from the battery assembly 200, the reset mechanism is used to reset the first positioning portion to the initial position, which is convenient for the next charging step. The first positioning portion 130 and the second positioning portion 140 have a certain interval in the height direction; so that the first positioning portion 130 has a certain gravitational potential energy with respect to the second positioning portion 140.

The first guiding part 170 is mainly used for guiding the motion track of the charging positioning part 150 received on the first positioning part, so that the charging connector approaches to the charging interface of the battery assembly 200 in the motion process; in this example, the bottom of the first guide portion passes through the first positioning portion and is mounted on the second positioning portion 140; one end (front end) of the first guide portion extends out of the first positioning portion, a guide groove 171 is formed in the front end of the first guide portion, and the groove length direction of the guide groove 171 is inclined with respect to the horizontal plane, so that the charging positioning portion 150 can move along the resultant force direction of the horizontal direction and the vertical direction.

The charging positioning part 150 is mainly used for fixing a charging connector matched with a charging interface of the battery assembly; a connection end of the charging positioning portion is movably disposed in the guide groove 171.

The basic idea of the invention is as follows: the jacking portion is when bearing the battery assembly, and first locating part realizes setting up the guide slot in the joint that charges on first locating part extends first guide part under the effect of battery assembly gravity, slope downwardly sliding to with the battery assembly interface that charges can the complex position department to the messenger charges the joint and contacts with the interface that charges and form electric connection structure, and charge the battery assembly.

In one possible embodiment, the charging positioning portion 150 and the top bracket portion 120 are both mounted on the first mounting portion 130, the first mounting portion 130 is movably disposed in the guide groove 171 of the first guide portion 170, the first guide portion 170 is mounted on the second mounting portion 140, and a reset mechanism is disposed between the first mounting portion 130 and the second mounting portion. The specific installation manner between the first installation portion 130 and the first guide portion 170 may be referred to as installation between the charging positioning portion 150 and the first guide portion 170, which is not described herein again.

The operation principle is as follows: when the battery assembly moves down and falls on the top holder 120, the top holder 120 is forced to move the first positioning portion closer to the second positioning portion 140 and compress the return spring 113, which is parallel to the guide groove 171 and is obliquely disposed between the first mounting portion and the second mounting portion. In the downward moving process of the battery assembly, in order to prevent the battery assembly from moving in the horizontal direction along with the first positioning part, the charging connector and the charging interface cannot approach each other; the top support part 120 is fixedly installed on the upper end surface of the first installation part, the battery assembly is supported in a sliding mode through the rollers installed on the top support part 120, and a baffle is arranged on one side of the battery assembly. When the first mounting portion moves obliquely downward along the guide groove 171 in the first guide portion under the action of gravity of the battery assembly, the battery assembly is caused to follow the first mounting portion and also has a tendency of compound horizontal movement; at this moment, block the battery assembly through the baffle that sets up in battery assembly one side, prevent battery assembly horizontal slip, and charge location portion 150 and follow first installation portion and incline downstream together, and the battery interface on the battery assembly keeps motionless in the horizontal direction, charge location portion 150 and drive the joint motion that charges to the battery interface, make the battery post that charges on the joint and the battery post contact on the interface that charges, form electric connection structure to charge the battery assembly.

The components are further described below.

The first positioning portion 130 is mainly used for receiving the top holder 120 and the charging positioning portion 150. In one possible embodiment, the first positioning portion 130 is a U-shaped cover plate with a downward notch, and the outer edge of the U-shaped cover plate is bent downward to form the second limiting plate 1301.

The second positioning portion 140 is mainly used for supporting the first positioning portion, and the second positioning portion 140 includes a bottom plate, an outer edge of the bottom plate is bent upwards to form a first limiting plate 1402, the first positioning portion is reversely buckled on the second positioning portion, so that a cavity is formed between the first positioning portion and the second positioning portion, and the first positioning portion 170 and the reset mechanism are conveniently installed. The first limit plate 1402 is abutted with the second limit plate 1301; the first positioning part is prevented from moving in the horizontal direction, the position of the battery assembly in the horizontal mode is fixed and unchanged, and the charging connector is convenient to contact with the charging interface. Furthermore, the stability of the platform is improved, and a circle of third limiting plate 1401 with edges extending upwards is arranged in the middle of the bottom plate; a fourth limit plate 1302 abutting against the third limit plate 1401 is also provided in one edge of the U-shaped cover plate. In order to reduce the weight of the charging platform 100, weight-reducing holes 105 with the same shape are arranged in the middle of the bottom plate and the cover plate. Preferably, the third and fourth limiting

plates

1401 and 1302 are respectively provided on one edge of the corresponding lightening hole.

In this example, the return mechanism is a return spring 113 mounted between the first positioning portion and the second positioning portion. It should be understood by those skilled in the art that the reset mechanism herein may also be other reset mechanisms such as a telescopic rod, and should not be construed as limiting the present invention. As shown in fig. 5, in the specific implementation process, in order to facilitate the assembly of the return spring 113, the bottom plate is provided with positioning holes, one elongated cylinder 112 is installed below each positioning hole, and the positioning holes are openings corresponding to the elongated cylinders 112. The lower end 113 of the return spring passes through the coordination hole and is inserted into the lengthened cylinder 112, and the upper end of the return spring is abutted against the lower end face of the second positioning part, so that the second positioning part is supported and reset.

In order to facilitate the repositioning between the first positioner 130 and the second positioner 140, two parallel first guide plates 191 are provided on an end surface of the second positioner, and the two adjacent first guide plates 191 have a gap therebetween and form a slide. The front end of the first guide plate 191 passes through a fourth hole formed in the second positioning portion and extends out of the upper end face of the second positioning portion, so that a slide way extending out of the fourth hole is formed. A second guide part is arranged on the second positioning part, the second guide part is two second guide plates 192 which are oppositely arranged, the second guide plates 192 are connected through a transverse connecting plate, the width of the transverse connecting plate is smaller than that of the second guide plates 192, and a straight guide groove 1920 is formed on one side of each of the two second guide plates 192 and the transverse connecting plate; one side of the first guide plate 191 is disposed in the straight guide groove 1920, the middle of the two second guide plates 192 is provided with a horizontal shaft 193, and the horizontal shaft 193 is provided with a roller (not shown), which is in rolling fit with the side of the first guide plate 191.

The top support part 120 is used for bearing and limiting the battery assembly, and preventing the battery assembly from being separated from the first positioning part. In this example, the top support portion 120 includes a vertical plate 121, a flat plate 122 is fixed to a bottom end of the vertical plate 121, and a third hole 1220 for installing a rivet is opened in the flat plate 122. Preferably, in order to facilitate the insertion of the battery assembly, a sharp plate 1210 extends from the edge of the vertical plate 121 near the first positioning portion 130, and the sharp plate 1210 and the upper end of the vertical plate 121 form a V-shaped receiving surface for receiving the bottom of the battery assembly.

Further, in order to facilitate the contact of the tip plate 1210 with the battery assembly, the tip plate 1210 has a beveled edge 1211 provided with a chamfer 1212 at one side and extending to the upper end surface of the vertical plate body 121 at the other side. One side of the battery assembly, after contacting the beveled edge of the sharp plate 1210, slowly slides down onto the upper end surface of the vertical plate 121 and is restrained.

As shown in fig. 2, 3 and 5, the bottom of the first guide part 170 passes through the first positioning part 130 and is mounted on the second positioning part 140, and one end (front end) of the first guide part extends out of the first positioning part 130, and an inclined guide groove 171 is opened at the front end of the first guide part. Preferably, the guide groove 171 is opened in a direction perpendicular to the thickness direction of the first guide portion 170; an activity space is provided in the first guide part 170. A sliding or rolling matched wheel shaft 182 penetrates through the guide groove 171, and a connecting block 180 is arranged at the bottom of the transverse plate 157; the connection block 180 is connected with the wheel shaft in the movable space so that: the axle 182 drives the transverse plate 157 through the connection block 180.

In one possible embodiment, the first guide part 170 is a triangular plate-shaped structure, which includes two parallel right-angled triangular plates 172, the tip corners of the right-angled triangular plates 172 are cut to form horizontal front ends, a right-angled side of the right-angled triangular plates 172 is mounted on the second positioning part, and one sides of the two right-angled triangular plates 172 are fixedly connected by a connecting plate 173, thereby forming an integral first guide part. A movable space is formed between the two right-angled triangular plates to facilitate the installation between the first guide part and the charging positioning part 150; the front end of the right triangle 172 is protruded from the first positioning portion, and a guide groove 171 is opened from the front end of the right triangle 172, and the guide groove 171 is parallel to the inclined side 172a of the right triangle in order to make the force applied to the right triangle uniform.

Further, a wheel shaft 182 is movably installed in the guide groove 171 through a guide wheel 181; one end of the connection block 180 penetrates through the movable space to be connected to the axle 182, and the other end of the connection block 180 is connected to the charging positioning part 150, so that the first guide part 170 and the charging positioning part 150 are assembled.

The charging positioning portion 150 is mainly used for fixing a charging connector matched with a charging interface of the battery assembly. In one embodiment, the charging positioning portion 150 includes a plate-shaped body 154, and the plate-shaped body 154 is bent toward one side to form a lateral plate 157; in order to improve the rigidity of the charging positioning part 150, a side plate 153 is further fixedly connected to one side of the plate-shaped body 154, first holes 1543 for clamping the charging connector are formed in the plate-shaped body 154 and the side plate 153, and an opening of each first hole 1543 is larger than the cross section of the charging connector, so that the charging connector can float in the first holes 1543 to a certain extent; charging connector may be mounted on plate-shaped body 154 through second hole 1541.

In order to facilitate the contact between the charging connector and the charging interface, the second holes 1541 of the plate-shaped body 154 are strip-shaped holes formed along the horizontal direction, the number of the strip-shaped holes is 4, the strip-shaped holes are distributed on the periphery of the first holes 1543, and guide pillars (not shown) on the charging connector are arranged in the second holes 1541, so that the charging connector can move left and right in the second holes 1541; further, a guide hole 1530 matched with the second hole 1541 is formed in the side plate 153, the guide hole 1530 is a strip-shaped hole formed in the vertical direction, the number of the guide holes is 4, the guide holes are distributed on the periphery of the first hole 1543, the charging positioning portion 150 is in contact with the charging interface, and a guide post on the charging interface is inserted into the guide hole 1530 and can slide in the horizontal direction; through the cooperation of second hole 1541 complex guide hole 1530, can make the joint that charges with charge the joint can the self-adaptation cooperation, realize the joint that charges and the dislocation automatically regulated that charges the joint in a plane, with charging the joint with charge the joint and align, improve the success rate that charges. Furthermore, a reset mechanism such as a coil spring can be arranged in the second hole, so that after the charging connector is aligned with the charging connector, the charging connector is reset through the coil spring, and the charging step can be conveniently repeated. It should be understood by those skilled in the art that the structure of the charging positioning portion is not limited to the embodiment, and may be changed according to the type of the charging connector or the charging connector on the battery assembly, which is not limited herein.

Further, a first position sensor 151 and a second position sensor 152 are provided on one side of the side plate 153; a third position sensor 155 is further provided at the front end of the plate-like body 153. The first position sensor 151 is used for sensing the displacement of the charging positioning part 150 in the vertical direction; the third position sensor 155 and the second position sensor 152 are each configured to sense a displacement of the charging positioning portion 150 in the horizontal direction.

In order to facilitate the movement of the charging positioning portion 150 in the horizontal direction, the charging connector and the charging interface are contacted to form an electrical connection structure. Preferably, the charging positioning portion is slidably connected to the first positioning portion 130. In one possible embodiment, the third positioning portion 160 is provided on the first positioning portion 130, the third positioning portion 160 is also in a plate-like structure and is fixed to the upper surface of the first positioning portion 130, and the tip of the rectangular triangle 172 also protrudes from the end surface of the third positioning portion. A horizontal slide rail 158 is provided at the upper end of the third positioning portion, and the horizontal slide rail 158 is connected to the bottom of the lateral plate 157 by a horizontal slide block 159 which is slidably connected. The bottom of the transverse plate 157 is connected to the axle 182 by a connecting block 180.

The operation principle is as follows: when the battery assembly moves down and falls on the first positioning portion 130, the first positioning portion 130 is forced to approach the second positioning portion 140, and the return spring is compressed. At the same time, the horizontal sliding rail 158 fixed to the first positioning portion 130 also moves downward. In the downward movement process of the horizontal sliding rail 158, the first guiding portion 170 is driven to move downward by a sliding fit manner. However, since one end of the first guide portion 170 is obliquely guided by the inclined guide groove 171, the first guide portion 170 is simultaneously compositely horizontally slid while moving down. I.e. finally the charging interface is engaged with the charging connector by means of the compound movement of the first guiding portion 170.

It should be emphasized that, in order to avoid the vertical separation of the horizontal slide rail 158 and the horizontal slider 159, in the present embodiment, the horizontal slide rail 158 adopts an i-shaped rail, and two side wings of the horizontal slider 159 respectively embrace the side spaces in the middle of the horizontal slide rail 158, so as to achieve the tight limit of the horizontal slide rail 158 and the horizontal slider in the direction vertical to the length direction of the rail.

In this embodiment, the gravity of the battery assembly is used as the driving force, the first positioning portion and the second positioning portion which are in floating fit with each other are used for realizing the combined motion of the first guiding portion 170, and then the automatic fit and the automatic power-off return of the power assembly and the charging connector are skillfully realized instead of manual work, so that the battery charging device has high practical value, and plays an important role in automatic reform of the charging program of the electric vehicle.

To further facilitate the movement of the charge positioning portion 150 in the horizontal direction, one end of the plate-shaped body 154 is connected to a piston end of a propulsion cylinder for driving the charge positioning portion to move linearly relative to the first positioning portion, so as to be closer to a charging interface of the battery assembly.

Example 2

In this embodiment, a charging and replacing power station is provided based on embodiment 1, which includes a battery storage rack 300 and a battery grasping mechanism 400.

A plurality of charging platforms 100 as described in embodiment 1 are erected on the battery storage rack 300; the battery grasping mechanism 400 is installed at one side of the battery storage shelf 300 for placing or grasping the battery assembly on the battery storage shelf 300. When an electric automobile needing to replace the battery drives into a battery replacement station, a battery replacement trolley drives into the vehicle along a track, the angle of the trolley is adjusted in the direction of the battery, then the trolley is lifted to be close to the battery, then the battery is unloaded, the battery is lowered along the track, the trolley drives away along the track and starts to a battery storage rack 300, and when the battery replacement trolley stops at a preset position, a battery grabbing mechanism 400 grabs a battery assembly with power shortage and places the battery assembly on a charging platform 100 for charging; then the battery grabbing mechanism 400 grabs and sends the battery assembly with the full electric quantity to the battery replacing trolley. And the battery replacing trolley enters the lower part of the chassis again to repeat the previous action and install the battery on the vehicle, so that the charging and battery replacing operation of the battery is completed.

The components are described in more detail below with reference to fig. 12-16.

The battery storage rack 300 includes a first rack 330 installed on the ground, a temporary storage rack 320, and a plurality of floors 340 disposed on the first rack 330. The deck 340 is used for mounting the charging platform 100 as described in embodiment 1. The temporary storage rack 320 is arranged on the inner side of the first rack 330 and is used for temporarily placing the power-lack battery transported by the power change trolley; or temporarily place a fully charged battery assembly that is gripped by the battery gripping mechanism 400.

In the example, the battery replacing trolley is an RGV trolley which is used for replacing a battery assembly of the electric automobile. The RGV carriage in this example is a rail car, moves on rails and moves to and from between the battery swapping station, into which an electric vehicle with a battery assembly to be replaced travels, and the battery storage rack 300. In this example, the battery pack is also referred to as a battery pack, a battery module, and the like, and is an integrated device for supplying driving power to an electric vehicle. The RGV car is driven under the vehicle of the lift station in an unloaded state, the insufficient battery assembly is detached from the vehicle, and the insufficient battery assembly is transferred from the battery replacement station to the battery storage rack 300. The run-flat battery assembly is replaced with a fully charged battery assembly at the battery storage rack 300. And the RGV carries the fully-charged battery assembly to enter the battery replacing station again, and the fully-charged battery assembly is installed on the vehicle. The work flow can be automatically carried out through the control of the controller, and the system is suitable for a miniaturized battery replacement place and a battery replacement service capable of being expanded in a modularized mode. Those skilled in the art will readily appreciate that to meet the steering requirements of the vehicle body, the vehicle body may be converted to an AGV cart and the guide rails may be converted to trackless guides corresponding to the AGV cart.

In one possible embodiment, there are two temporary storage racks 320, each of which is fixed inside the first rack 330. The temporary storage rack 320 includes: a first cross bar 323 and a second cross bar 325 which are arranged on the vertical beam of the first frame 330, wherein the first cross bar 323 and the second cross bar are arranged in parallel at intervals; two vertical bars 324 are also provided between the first and second cross bars. To improve the stability of the temporary storage rack 320, vertical bars 324 are also welded to the stringers 310 on the first frame 330. The perpendicular rigid coupling in one side of second horizontal pole has two bracing pieces 327, and the front end of two bracing pieces 327 all passes through third horizontal pole 321 rigid coupling. Two of the support bars 327 and the third cross bar 321 form a support surface therebetween for supporting the bottom end surface of the battery assembly. A pressure sensor 326 is further disposed on one side of the vertical rod 324, and the pressure sensor 326 senses pressure changes on the supporting surface to determine whether the temporary storage rack 320 temporarily stores the battery assembly. Further, in order to increase the rigidity of the supporting surface, the temporary storage rack 320 further includes a reinforcing rib 322, one end of the reinforcing rib 322 is fixed to the middle portion of the supporting rod 327, and the other end is fixed to the upper end of the vertical rod 324.

As shown in fig. 12-16, the battery grasping mechanism 400 includes a second frame 420, a second driving member, a weight 440, and a grasping assembly 460.

The second frame 420 is mainly used for carrying the second driving member, the weight 440 and the grabbing assembly 460. The second frame has a pair of vertically disposed first vertical beams 421 and another pair of vertically disposed second vertical beams 422, and the front ends of the first vertical beams and the second vertical beams are connected by a rectangular frame 423, thereby forming an integral frame structure. A weight block 440 is slidably connected between the first vertical beam 421 and the second vertical beam 422. A second driving member is installed at the upper end of the rectangular frame 423, the second driving member in this example comprises a servo motor 410 installed on one side of the rectangular frame 423 through a coupling, a bearing seat 411 is arranged on the rectangular frame 423, a rotating shaft 413 is rotatably installed on the bearing seat, and a moving gear is assembled on the rotating shaft 413; the moving gear is in transmission connection with a balancing weight 440 through a transmission chain 430.

The gripper assembly 460 includes a bottom receiving plate 461 and a telescoping arm 462 mounted to the bottom receiving plate 461. When the bottom receiving plate 461 is located near the temporary storage rack 320 or near the tier plate 340, the telescopic end of the telescopic arm 462 extends to the bottom of the battery assembly and fixes the battery assembly; the retraction of the end of the arm 462 returns the battery assembly to the bottom support plate 461. In one possible embodiment, the telescopic arm 462 is a cylinder, a vacuum chuck is disposed on a piston end of the cylinder, and the battery assembly is fixed by suction through the vacuum chuck; however, it should be understood by those skilled in the art that the telescopic arm 462 may also be an electric telescopic rod, and the like, and is not limited herein.

A second roller 463 extends from the side edge of the bottom bearing plate 461, and the second roller 463 is slidably connected with the side wall of the first vertical beam 421; the upper parts of the second vertical beam 422 and the first vertical beam 421 are both provided with a fixed pulley block, one connecting end of the fixed pulley block is connected with the balancing weight 440, the other end of the fixed pulley block is connected with the bottom bearing plate 461, so that the balancing weight 440 and the bottom bearing plate 461 form an equal-arm lever structure on the fixed pulley block, the load of the bottom bearing plate 461 is offset by the weight of the balancing weight, and the power generated by the servo motor 410 can realize the lifting of the load only by breaking the balance of the acting force and the reacting force, thereby reducing the energy loss of the servo motor, saving energy, realizing small power and improving the effect of large load. The second roller 463 serves as a guide for the bottom receiving plate 461 to move on the first vertical beam 421 or the second vertical beam 422, and the bottom receiving plate 461 will not shift when ascending or descending.

In the specific implementation process: the trolley places the battery assembly 200 with power loss on the temporary storage rack 320, at this time, the pressure sensor 326 senses the pressure, the servo motor 410 rotates forward, the rotating shaft 413 arranged on the bearing seat 411 is driven to rotate, the driving gear is meshed with the transmission chain 430, the balancing weight 440 moves upwards, the bottom bearing plate 461 at the other end of the fixed pulley block moves downwards, the bottom bearing plate 461 is positioned near the temporary storage rack 320, and at this time, the telescopic end of the telescopic arm 462 extends to the bottom of the battery assembly and fixes the battery assembly; the telescopic end of the telescopic arm 462 returns to bring the battery assembly back to the bottom bearing plate 461; then the servo motor 410 rotates reversely to make the weight 440 move downwards, the bottom bearing plate 461 drives the battery assembly 200 to rise to the laminate 340 on the first frame 330, at this time, the telescopic end of the telescopic arm 462 drives the battery assembly to enter the upper end of the charging platform, then the servo motor 410 rotates forwards to make the telescopic arm 462 descend until the battery assembly is stabilized on the charging platform after descending to a certain height, and at this time, the telescopic arm 462 returns to complete the charging action.

When the battery replacement is needed, in contrast to the above steps, the servo motor 410 drives the grabbing component 460 to move to the vicinity of the laminate 340 where the fully charged battery assembly is located, the grabbing component 460 grabs the fully charged battery assembly and places the fully charged battery assembly on the temporary storage rack 320, and the battery replacement trolley picks up the fully charged battery assembly and installs the fully charged battery assembly on the electric vehicle.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.

It should also be noted that the terms "a," "an," "two," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims

1. A charging platform, comprising:

a first positioning portion (130) having a top tab (120) for restraining a battery assembly;

a second positioning portion (140), wherein a reset mechanism is arranged between the second positioning portion (140) and the first positioning portion (130); the first positioning part and the second positioning part have a certain interval in the height direction;

the first guide part (170), the said first guide part (170) is set up on the said second locating part (140), one end of the first guide part (170) is worn out from the said first locating part, offer the guide slot (171) on the said first guide part (170); the groove length direction of the guide groove (171) is inclined relative to the horizontal plane;

the charging positioning part (150), the charging positioning part (150) is used for fixing a charging connector matched with a charging interface of the battery assembly; the connecting end of the charging positioning part (150) is movably arranged in the guide groove (171);

the charging positioning part (150) comprises a plate-shaped body, and the plate-shaped body (154) is bent towards one side to form a transverse plate (157); the horizontal sliding rail (158) is connected with the bottom of the transverse plate (157) through a sliding horizontal sliding block (159);

a side plate (153) is further fixedly connected to one side of the plate-shaped body (154), and a guide hole (1530) is formed in the side plate (153); the plate-shaped body (154) and the side plate (153) are respectively provided with a first hole (1543) for clamping a charging connector;

the plate-shaped body is also provided with a second hole, the second hole is a strip-shaped hole formed along the horizontal direction and is distributed on the periphery of the first hole, and the guide pillar on the charging connector is arranged in the second hole, so that the charging connector can move left and right in the second hole; the side plate is fixedly attached to the plate-shaped body, a guide hole matched with the second hole is formed in the side plate, the guide hole is a strip-shaped hole formed in the vertical direction, is positioned on the back of the second hole and is distributed on the periphery of the first hole; when the charging positioning part is contacted with the charging interface, a guide post on the charging interface is inserted into the guide hole and can move in the horizontal direction; through the cooperation of second hole and guiding hole, can realize the dislocation of the joint that charges and the joint that charges in a plane and adjust, make the joint that charges with the joint that charges can self-adaptation cooperate.

2. The charging platform as claimed in claim 1, wherein the charging positioning part is slidably connected to the first positioning part (130).

3. The charging platform according to claim 2, wherein a third positioning portion (160) is provided at an upper end of the first positioning portion (130), and a front end of the first guide portion (170) also protrudes from the third positioning portion; and horizontal sliding rails (158) arranged on the third positioning parts (160) are arranged on two sides of the first guide part.

4. The charging platform according to claim 3, characterized in that the guide groove (171) is opened in a direction perpendicular to the thickness direction of the first guide part (170); a movable space is arranged in the first guide part (170);

a wheel shaft (182) in sliding fit or rolling fit penetrates through the guide groove (171); the bottom of the transverse plate (157) is provided with a connecting block (180); the connection block (180) is connected with the wheel shaft in the movable space so that: the axle (182) drives the transverse plate (157) via the connecting block (180).

5. A charging platform according to claim 3, characterized in that a first position sensor (151) and a second position sensor (152) are provided at one side of the side plate (153); a third position sensor (155) is also provided at the front end of the plate-like body (154).

6. The charging platform as claimed in claim 1, wherein the supporting portion (120) comprises a vertical plate (121), a sharp plate (1210) extends from one side of the vertical plate (121) near the edge of the first positioning portion (130), the sharp plate (1210) has a bevel edge (1211), one side of the bevel edge is provided with a chamfer (1212), and the other side of the bevel edge extends to the upper end face of the vertical plate (121).

7. The charging platform according to claim 1, wherein the first positioning portion and the second positioning portion are elastically connected through a return spring (113);

a fourth hole is formed in the first positioning part (130), a slide way extending out of the fourth hole is formed in the second positioning part (140), and a second guide part is arranged on the first positioning part (130) close to the fourth hole and is in sliding contact with the slide way.

8. The charging platform as claimed in claim 7, wherein the second positioning portion (140) comprises a bottom plate, and a first limiting plate (1402) is formed by bending upward the outer edge of the bottom plate; the first positioning part (130) is a U-shaped cover plate with a downward notch, and the outer edge of the U-shaped cover plate is bent downward to form a second positioning plate (1301); the first limiting plate (1402) is matched with the second limiting plate (1301) in an abutting mode;

a circle of third limiting plates (1401) with edges extending upwards are arranged in the middle of the bottom plate; a fourth limiting plate (1302) with a circle of edge matched with the third limiting plate (1401) in an abutting mode is arranged on the first positioning portion (130).

9. The charging platform according to claim 8, characterized in that weight-reducing holes (105) with the same shape are arranged in the middle of the bottom plate and the U-shaped cover plate; the third limiting plate (1401) and the fourth limiting plate (1302) are respectively arranged on one circle of edge of the corresponding lightening hole.

10. A charging and replacing power station, comprising:

a battery storage rack (300) having a plurality of charging platforms as recited in claim 1; and

a battery gripping mechanism (400) mounted on one side of the battery storage rack for placing or gripping a battery assembly on the battery storage rack (300).